20061340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 49674240

約数和(自身を除く): 29612900

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 131, 155, 190, 247, 260, 262, 310, 380, 403, 494, 524, 589, 620, 655, 806, 988, 1178, 1235, 1310, 1612, 1703, 2015, 2356, 2470, 2489, 2620, 2945, 3406, 4030, 4061, 4940, 4978, 5890, 6812, 7657, 8060, 8122, 8515, 9956, 11780, 12445, 15314, 16244, 17030, 20305, 24890, 30628, 32357, 34060, 38285, 40610, 49780, 52793, 64714, 76570, 77159, 81220, 105586, 129428, 153140, 154318, 161785, 211172, 263965, 308636, 323570, 385795, 527930, 647140, 771590, 1003067, 1055860, 1543180, 2006134, 4012268, 5015335, 10030670, 20061340]

約数ペア:

[(1, 20061340), (2, 10030670), (4, 5015335), (5, 4012268), (10, 2006134), (13, 1543180), (19, 1055860), (20, 1003067), (26, 771590), (31, 647140), (38, 527930), (52, 385795), (62, 323570), (65, 308636), (76, 263965), (95, 211172), (124, 161785), (130, 154318), (131, 153140), (155, 129428), (190, 105586), (247, 81220), (260, 77159), (262, 76570), (310, 64714), (380, 52793), (403, 49780), (494, 40610), (524, 38285), (589, 34060), (620, 32357), (655, 30628), (806, 24890), (988, 20305), (1178, 17030), (1235, 16244), (1310, 15314), (1612, 12445), (1703, 11780), (2015, 9956), (2356, 8515), (2470, 8122), (2489, 8060), (2620, 7657), (2945, 6812), (3406, 5890), (4030, 4978), (4061, 4940)]